I can’t remember the last time I saw the actual use of a rubber date stamp, most libraries exchanged them for fancy barcodes and other digital systems a decade ago. But Italian artist Federico Pietrella (previously) who lives and works in Berlin has a fantastic use for them in his paintings made from thousands of densely stamped ink dates. In his enormous ink artworks Pietrella always stamps the current date, thus each of his pieces contains a clear timeline of the days he worked on it, often spanning two months. You can see much more on his website and watch a brief interview with artist courtesy of Deutsche Welle. (via visual news)